Vehicle-axle attachment.



No. 702,424. Patented lune I7, 1902.

' J. W. HAFER.

VEHICLE AXLE ATTACHMENT.

-A.pphcation filed Apr. 16, 1902.)

(No Model.

- unurrmrru llill I v i r 1% "I M a t i: I H "11" OZ Wil'ncne. I

UNITED STATES PATENT OFFICE.

JOHN W. HAFER, OF BELLEFONTE, PENNSYLVANIA.

VEHICLE-AXLE ATTACHM ENT.

SPECIFICATION forming part Of Letters Patent N 0. 702,424, dated June17, 1902.

Application filed April 16, 1902. Serial No. 108,116. (No model.)

To all whom, it ntoty concern:

Be it known that 1, JOHN W. HAFER, a citizen of the United States,residing at Bellefonte, in the county of Center and State ofPennsylvania, have invented certain new and useful Improvements inVehicle-Axle Attachments; and I do declare the following to be afull,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame. p s 1 The invention relates to a vehicle-axle attachment.

The object'of the invention is to provide a device of this characterwhich shall be simple of construction, durable in use, comparativelyinexpensive of production, and by means of which axle nuts are entirelydispensed with and the wheel more quickly and securely retained inposition upon the axle.

With this and other objects in view the invention consists of certainnovel features of construction, combination, and arrangement of parts,which will be hereinafter more fully described, and particularlypointedout in the appended claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewthrough an axle, the hub thereon, and through my improved attachment.Fig. 2 is a top plan view of my improved attachment. Fig. 3 is a similarview with the cap-piece removed, and Fig. 4c is a similar view with thecam-disk removed. Fig. 5 is a bottom plan View of the cam.

Referring to the drawings, 1 denotes the axle-spindle, the outer end ofwhich is formed with a groove 2. g

3 denotes a hub, and 4 denotes the attachment. The attachment 4comprises a cylindrical shell 5, provided at one end with a fixedannular inwardly projecting shoulder 6, which has formed therein radialslots or seats 7, in which are mounted to slide locking-blocks .8,provided with laterally-projecting pins 9.

10 denotes what for convenience of reference Iwill term the cam-disk, ofa diameter to snugly fit within the shell and provided upon its innerface with a socket 10' to receive the end of the axle-spindle and withcam-grooves 11 to receive the pins projecting from the locking-blocks.

12 denotes a pin mounted in a hole 13, formed in the cam-disk, and 14denotes a spring, which has a forked end 15 to engage notches 16, formedin the pin to hold the pin in retracted position for a purpose to behereinafter explained.

. 17 denotes a cap-plate of a diameter to snugly fit within the outerend of the cylindrical shell and secured in place by screws or otherfastening devices 18 and formed near its periphery with a recess 19, thebase of which is formedwith a curved slot 20, the

walls of which are formed with a seat or depression 21. Through thisslot projects the pin 12, which is provided with a nut or head 22, whichis adapted to engage the seat or recess 21.

Inoperation, after the hub of the wheel has been slid upon theaxle-spindle, the attachment is slipped over the free end of the spindleuntil it abuts against the outer end of the hub and the locking-blocksbecome coincident or alined with the groove in the spindle. The head ofthe pin is now grasped and the pin turned in the direction ofthecurvedslot until the head registers With the recess or seat formed in theWalls of the slot. The head is then released, and the spring will drawit down into the seat or recess, and thus lock it against retrogrademovement. In the movement of the pin in the recess from one end of theslot to the other, the cam-disk is rotated a corresponding distance, andthe camgrooves thereof have shot the locking-blocks into the groove ofthe axle, thus securing them in place upon the axle. To disengage theattachment, the head of the pin 12 is grasped and pulled outward, eitherby the fingers or a specially-constructed tool for the purpose, thusremoving the head from ongagement with the recess and permitting of thepin being moved in the reverse direction from'that just explained. Thismovement will retract the locking-blocks, so as to permit of the readydisconnection of the attachment from the axle-spindle.

From the foregoing description, taken in connection with theaccompanying drawings, the construction, mode of operation, andadvantages of the invention will be readily understood without requiringan extended explanation.

Various changes in the form, proportion, and details of construction maybe made within the scope of the invention without departing from thespirit or sacrificing any of the advantages thereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In a vehicle-axle attachment, the comhination with a shell havingradial recesses, blocks mounted to slide in said recesses and providedwith pins, a cam-disk rotatably mounted in said shell and provided withcam slots, a spring-actuated pin mounted in said disk, a cap-platemounted in said disk and provided with a curved slot formed with a seat,and a head secured to the end of said pin and adapted to engage saidseat to lock the cam-disk against movement, substantially as set forth.a

2. In a vehicle-axle attachment, the combination With an axle-spindleprovided with an annular groove, of an attachment consisting of a shellhaving an annular shoulder formed with radial seats or recesses,lookingblocks mounted to slide in said radial seats or recesses andprovided with pins, a camdisk mounted to rotate Within said shell andprovided upon one face with cam-grooves into which the pins of theblocks project, a pin having a sliding movement in a hole formed in saiddisk, a spring secured to said disk and connected to said pin andexerting its pressure to move the same inwardly, a cap secured to saiddisk and formed with a depression and with a curved slot through whichsaid pin projects, said slot being formed with a seat or recess in itsWalls, and a head secured to the outer end of the pin and adapted to beheld seated by the spring in said seat or recess of the cap -plate,substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

J. W. HAFER.

Witnesses:

BENJ. G. CoWL, JAs. A. G. KOEHL.

